Earth Systems Science

From Soil to Climate Solutions: Berhe Leads Sierra Nevada Research Institute into its Next Chapter

September 11, 2025

When Professor Asmeret Asefaw Berhe arrived at UC Merced in 2009, she and her husband, Professor Teamrat Ghezzehei, were leaving major research institutions to join a brand-new campus in California’s Central Valley. It was a leap of faith — one made easier by the Sierra Nevada Research...

Professor Asmeret Asefaw Berhe stands in front of a wall wearing a light blue lab coat and holding a tray of cake tins filled with soil samples.

Earth Scientist Targets Sexual Harassment With NSF Grant

Professor Asmeret Asefaw Berhe is a biogeochemist who studies the impact of climate change on Sierra Nevada soils. She’s also active in efforts to recruit and retain women in science,...

A man in a blue jacket, blue jeans and sunglasses stands in a snowy forest repairing an electronic sensor device.

Massive Sensor Network Helps Scientists Monitor Mountain Water Resources

Scientists from the Sierra Nevada Research Institute, UC Merced, UC Berkeley and the USDA Agricultural Research Service have designed the first ever wireless sensor network (WSN) capable of...

Study: Critical Sierra Meadows Being Overtaken by Forest

Subalpine meadows are among the Sierra Nevada’s most enchantingly picturesque landscapes. These sparsely wooded, grassy expanses are home to plants and animals found nowhere else, and they play an...

Study: Wildfires, Climate Change Could Make Sierra a Polluter

What if nature were to become a polluter, discharging millions of tons of planet-warming carbon into the atmosphere in much the same way as diesel-fueled trucks or coal-fired power plants? This...

Community Members Aid Cutting-Edge Research in ‘BioBlitz’ Project

When scientists at UC Merced seek to better understand California’s biodiversity, they turn to cutting-edge genomics. They also turn to their neighbors. On a sunny Saturday in April, scientists...

Research Shows Global Photosynthesis on the Rise

Plant photosynthesis was stable for hundreds of years before the industrial revolution, but grew rapidly in the 20th century, according to new research published today in Nature. “Virtually all life...

Study: Dust Helps Regulate Sierra Nevada Ecosystems

“Collecting dust” isn’t usually considered a good thing. But dust from as near as the Central Valley and as far away as the Gobi Desert in Asia provides more nutrients — especially critical...

Paleorecord Critical to Future Conservation Efforts, Scientists Say

The rapid pace of global change has large impacts on nature, and on the work conservation biologists will have before them, too. From here on out, experts say, the fossil record is going to be...

Study: Warming Could Slow Upslope Migration of Trees

By Dan Krotz, Lawrence Berkeley National Laboratory Scientists expect subalpine trees to advance upslope as global temperatures increase, following their climate up the mountains. But new research...